The LM10 is not common today, but the circuit can be adapted to operate with equivalent components. The circuit is from the 1994 Linear Applications Handbook by National Semiconductor.
In the figure we have a simple signal tracer circuit to be coupled to the volume control of an AM...
This circuit was found in documentation from the 90s, using components from that time. The...
This circuit, obtained from old documentation, allows the recovery of sulfated batteries. The...